I am a Pure Land Buddhist with a side Chan(Zen).
I use the nembutsu to meditate. This is chanting "Namu Amida Buddha" in my head. I do it while running, not the whole run but parts of it, and at other times all throughout the day. It is my anchor to bring myself back to the current moment. I have been doing it for about a year now and at times when I am under stress it will begin to chant itself without me even thinking about it. Usually when I chant I can feel a smile come to my face all on its own.